.footer{
    position: absolute;
    width: 100%;
    height: 12%;
    top: 550px;
    background-color: black;
    left: 50%;
    transform: translate(-50%, -50%);
}
.poweredBy{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    color:whitesmoke;
}